Prediction markets & exchanges
Business and regulatory reporting on Polymarket.
Business and regulatory reporting. Dates show when reports were published; they do not establish when a change took effect or whether a relationship continues.
Wagering on 2026 US midterm outcomes through Kalshi and Polymarket has exceeded USD220m, citing published reporting and Anti-Corruption Data Collective analysis. That compares with USD92m across the full 2024 congressional cycle. On Polymarket, the busiest 1% of wallets generated 70% of congressional election trading volume.
Wagering on 2026 US midterm outcomes through Kalshi and Polymarket has exceeded USD220m, citing published reporting and Anti-Corruption Data Collective analysis. That compares with USD92m across the full 2024 congressional cycle. On Polymarket, the busiest 1% of wallets generated 70% of congressional election trading volume.
Polymarket will feature LeBron James in advertising campaigns and social media posts promoting football, citing published reporting for the deal terms. James is due to receive US$15 million a year; The report said his Philadelphia 76ers salary as US$4 million annually, also citing published reporting. The deal’s duration has not been disclosed, and James will not be an investor in Polymarket.
Also in this report: Philadelphia 76ers · DraftKings · USA
Prediction markets generated $78.2bn in notional trading volume during September. A recovery in sports trading helped push the monthly total above the previous record of $56.4bn recorded in July.
Also in this report: Kalshi · Polymarket US · Novig
Taiwanese authorities have restricted access to the Coinbase and Kalshi websites, in a measure according to the report as authorised by a New Taipei court. The report said that the Criminal Investigation Bureau identified possible violations of Taiwan’s rules on election betting ahead of local elections on 28 November 2026. Coinbase said it was checking reports of access problems, while Kalshi said Taiwan is already subject to operational restrictions.
Also in this report: Coinbase · Kalshi · Taiwan · Criminal Investigation Bureau
Ohio has asked the US Supreme Court to hear a dispute over authority to regulate sports prediction markets. A bipartisan coalition of 39 states supports the request. Ohio argues states should oversee these products, while operators including Kalshi and Polymarket say they offer swaps under Commodity Futures Trading Commission supervision.
Polymarket appointed Warren Jenson as its first chief financial officer on 11 September. The prediction markets platform made the appointment one month after hiring a chief growth officer.
Also in this report: USA
Polymarket hired a former Uber vice-president as chief growth officer. The appointment comes as Polymarket expands its US operations.
Also in this report: USA
The report said that Polymarket appointed former Uber vice-president Travis VanderZanden as chief growth officer. The move follows recent appointments of chief risk and compliance officers.
The Ohio Casino Control Commission has reiterated that Robinhood Derivatives must obey its cease-and-desist order by 16 October. The order concerns sports-event contracts, and Ohio issued similar notices to nine other firms.
Also in this report: Robinhood Derivatives · Coinbase · Webull · Gemini
Norway’s gambling regulator has notified 62 companies that their websites could face blocking in the country on 9 October. The report names Kalshi and Polymarket among the targets.
Also in this report: Kalshi · Norway · Lotteritilsynet
Polymarket has challenged a €420,000 penalty in the Netherlands on 7 October. The platform says it sought to meet the deadline for blocking access in the country.
Also in this report: Netherlands
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Co-mentions in the same reports. These do not establish a business relationship. Countries identify the subject of reporting, not where a company operates.
Newest first, grouped by month.
The access restrictions affect how prediction-market platforms can serve users in Taiwan amid enforcement over election-related betting.
The findings bear on state challenges to Kalshi and Polymarket's position that their contracts fall exclusively under CFTC jurisdiction.
Investors assessing election betting growth must consider that Polymarket’s busiest 1% of wallets generated 70% of congressional trading volume.
BetMGM's iGaming revenue exceeded its online sports betting revenue, giving investors a comparison of the operator's two businesses.
The deal links a high-profile athlete to Polymarket’s football advertising, giving operators and suppliers a reported benchmark for sports promotion.
Ohio’s request puts disputed state and federal authority over sports prediction market operators before the Supreme Court.
Sports trading helped prediction market operators exceed their previous monthly volume record.
Robinhood Derivatives faces a 16 October compliance deadline for Ohio’s cease-and-desist order concerning sports-event contracts.
The reported public view and opposition to several types of betting inform the debate over prediction market oversight.
The lobbying seeks to influence the regulatory treatment of prediction market products in the USA.
The poll gives investors divided expectations for DraftKings and Flutter, including adaptation, displacement and consolidation with prediction markets.
270toWin links users to Polymarket election contracts, but markets without verified corresponding events remain inaccessible.
The dispute concerns whether federal commodities regulators or gambling authorities should oversee sports contracts, affecting prediction market oversight.
The case and lawsuit could affect how sports event contracts operate and how Florida’s gaming compact applies to DraftKings’ platform.
The possible blocks would restrict access to the targeted websites for users in Norway.
The appeal concerns whether Polymarket’s prediction markets fall under Dutch gambling rules.
The dispute concerns whether sports prediction platforms must comply with state gambling laws alongside federal financial supervision.
The case could determine whether states can apply gambling laws to prediction market operators such as Kalshi and Polymarket.
Polymarket’s challenge contests a Dutch penalty while asserting it sought to meet the deadline for blocking access.
Reported wash trading estimates and sports betting concentration put prediction platforms’ trading integrity and younger users under scrutiny.
Investors can compare HIP-4’s early October daily volume of roughly $1.25m with higher volumes at Kalshi and Polymarket.
Utah’s effort to apply gambling prohibitions puts prediction market operators in conflict with the administration’s position on their classification.
POGO’s requested trading ban, financial disclosures and explicit penalties would strengthen prediction market restrictions for Department of Defense personnel.
Warnings about financial panic give regulators a concern to assess around Polymarket’s contracts on major bank collapses.
The challenge contests the KSA’s classification of prediction markets as gambling and its ban on Polymarket serving Dutch users.
JPMorgan’s estimate gives investors potential additional EBITDA from Genius Sports’ agreements with Kalshi and Polymarket.
Sports and combo markets generated 86% of Sunday volume, highlighting their importance to prediction market operators.
Polymarket and Kalshi face unresolved oversight questions as experts warn stock-linked contracts could affect share trading and complicate enforcement.
The dispute pits state gambling enforcement against the CFTC’s claim of exclusive jurisdiction over sports-event contracts.
Operators face differing competitive positions: Polymarket leads branded searches, while Kalshi leads trading volume and narrows the search gap.
Operators face 62% public support for Brazil's betting ban, according to the reported poll.
The dispute brings Polymarket into New York’s legal battle over prediction markets.
Kalshi and Polymarket face a requested Senate examination of whether presidential family connections enabled financial gain or privileged access.
Nine prediction market platforms face Connecticut cease-and-desist orders over sports event contracts offered to residents.
Polymarket seeks financial regulation instead of individual countries’ gambling laws, making product classification central to its European regulatory position.
The launch gives a Tribal-owned business access to Kalshi’s exchange while other Tribal governments challenge sports-event contracts in court.
CNBC linked growing interest in Polymarket and Kalshi to football’s return and the approaching November election.
The Indian Gaming Association seeks explicit safeguards against federal commodities law overriding state and tribal gaming laws.
Groothuizen’s call highlights enforcement challenges when unlicensed operators change legal identities or offshore jurisdictions.
Whole-domain blocking restricts platform information beyond trading, raising questions about the scope of prediction market restrictions for regulators.
Polymarket’s election betting remains accessible through VPNs despite CMN’s blocking order, with 40 cryptocurrency markets operating.
The orders require nine prediction market companies to stop offering sports event contracts to Connecticut residents.
Polymarket and Kalshi’s European expansion accompanies ESMA calls for monitoring insider trading, manipulation and potential retail harm.
ESMA warns European operators face a different regulatory environment from the United States for prediction markets.
Prediction market operators face Connecticut cease-and-desist orders over alleged breaches of state gaming laws involving sports event contracts.
Brazilian authorities face continued Polymarket access despite a federal prohibition, with presidential election betting reported at R$750.8m.
Polymarket adds its first chief financial officer one month after hiring a chief growth officer.
Connecticut’s orders require nine platforms to halt sports event contracts and other alleged unlicensed online gambling while permitting withdrawals.
Pennsylvania proposals would introduce prediction-market taxation, PGCB oversight, insider-trading bans and restrictions on bets involving deaths and youth sport.
The Senate hearing gives Texas lawmakers an opportunity to examine prediction market oversight and youth access.
DICE gives investors ETF exposure to prediction market businesses, including private holdings in Kalshi and Polymarket.
Reported VPN access shows regulators that Brazilian users can reach Polymarket’s election markets despite the CMN block.
ESMA’s report highlights blurred boundaries between financial instruments, prediction markets and gambling, explicitly naming Polymarket and Kalshi.
State officials are examining gambling laws as grounds to regulate or prohibit operators’ election prediction contracts.
Prediction market platforms face proposed election trading safeguards while court disputes continue over states’ gambling regulatory authority.
Polymarket’s campaign preview with LeBron James leaves the partnership’s terms and promoted product unspecified.
Any UK legalisation could require prediction market operators to obtain gambling licences and comply with UKGC rules.
Polymarket is using LeBron James and Derek Jeter to promote Squads as it seeks greater US market share.
Platforms would still need gambling licences for political outcome markets if the FCA relaxes its prediction market restriction.
The NFL is seeking removal of certain betting products from prediction platforms, including Kalshi and Polymarket.
FanDuel and DraftKings face competition from Kalshi and Polymarket for sports betting customers as the NFL season approaches.
Polymarket’s funding adds US$1bn in capital and raises its valuation from US$15bn to US$21bn.
The proposed round would provide Polymarket with $1bn in additional capital.
Santos has lost access to Kalshi and his paid relationship with Polymarket.
Kalshi identified suspected trading misconduct, imposed a permanent exclusion and referred the matter to federal authorities.
The ruling strengthens state regulators’ position in disputes over whether prediction platforms must comply with gambling rules.
The Ninth Circuit upheld Nevada’s enforcement against Kalshi, rejecting federal financial regulation as protection from state gambling laws.
Conflicting appellate rulings on Kalshi could bring the dispute before the Supreme Court.
Kalshi’s review found no evidence that Prakash traded on races covered by the fabricated election polls he circulated.
The reported investigations extend scrutiny to military-event and corporate earnings contracts, while authorities have yet to decide whether to bring charges.
Sports betting operators contributed roughly $76m towards US midterm elections, including $29m from four operators to Win for America.
The expansion gives Polymarket access to data, live streaming and integrity services across a broader range of sports competitions.
Polymarket’s petition challenges ANJ’s website blocking decision after the regulator warned prediction markets could constitute illegal gambling.
US casino operators are investing in dining, concerts and other attractions to draw Gen Z visitors.
Kalshi’s sponsorships expand MLB prediction market partnerships, with four new partners playing in states that prohibit sports betting.
DraftKings joins Kalshi and Polymarket in California’s prediction market sector, where traditional sports betting remains illegal.
The committee examined manipulation risks, while disputed examples highlight disagreement over which products breached standards.
Prediction market operators are expanding sports products while facing expected litigation developments and possible additional New York filings.
State regulators argue sports contracts require gambling licences, challenging platforms operating under CFTC oversight with substantial sports trading activity.
Polymarket adds growth leadership from a former Uber vice-president as it expands US operations.
Federal backing for permitted operators and insufficient congressional support underpin a lawyer’s assessment that states would gain no midterm advantage.
The court decision enables Denmark’s regulator to require internet providers to block gambling domains through DNS restrictions.
The decision would restrict Polymarket’s access to users in South Korea.
South Korea’s Polymarket ban could end the domestic prediction market sector, industry sources warned.
The planned White House meeting connects prediction market executives with President Trump and the Commodity Futures Trading Commission chairman.
The decision targets access to Polymarket in South Korea.
Operators face proposed Pennsylvania prediction market regulation that would require neither taxes nor licences while permitting sports event contracts.
The reported termination suggests regulatory concerns could affect Polymarket’s access to banking services, although Polymarket says its broader JPMorgan relationship remains active.
The cases extend municipal consumer protection challenges to the two prediction-market platforms.
The reported decision removed a banking relationship for Polymarket.
The lawsuit challenges the operators’ sports contracts under state gambling rules.
The lawsuits apply Baltimore’s consumer protection enforcement to prediction-market platforms.
The lawsuit seeks penalties over alleged unlicensed wagering and consumer deception.
The suits extend local challenges to the platforms’ sports contracts.
Platforms reported more suspected insider traders than the number of people facing reported CFTC action.
The agreement gives Polymarket promotional exposure at Yankee Stadium.
Lazio’s cancellation ends its commercial sponsorship agreement with Polymarket.
The termination ends the sponsorship agreement between Polymarket and Lazio.
The request concerns a contract category the report says is absent from current markets.
The platforms face disclosure requests concerning advertising practices and potential marketing to minors.
The termination cuts short the planned sponsorship period.
The appointment adds growth leadership to Polymarket’s executive team.
The agreements connect Genius Sports with two prediction market platforms.
The change alters the price basis used to settle timed cryptocurrency contracts.
Genius links its Legend acquisition to customer-acquisition and data opportunities in prediction markets.
The agreements establish Genius Sports relationships with both prediction-market operators.
The agreement combines live tennis streaming with prediction-market access for US users.
The ruling allows Utah to pursue state gambling-law enforcement against the platforms.
The agreements extend Genius Sports’ data services into both prediction market exchanges.
The agreements add two prediction-market partners for Genius Sports.
The order expands restricted access to unauthorised gambling websites in Italy.
The agreement supports contract settlement, live viewing and integrity monitoring on Polymarket.
The lawsuit tests whether the platforms’ event contracts comply with South Carolina gambling law.
The activity extends prediction market trading into state primary contests.
The proposal would establish state requirements and substantial potential penalties for prediction-market operators.
The defence challenges whether the alleged prediction market conduct constitutes a crime.
The reported fundraising target would increase Polymarket’s valuation from the earlier round.
Polymarket’s website remains blocked while the court considers its interim application.
The decision leaves the Italian access restrictions in place pending further court consideration.
The deal combines ATP streaming access with prediction-market trading for US users.
The partnership connects sports coverage and official data with Polymarket’s US offering.
The deal extends Polymarket’s sports-rights activity into professional tennis.
World Cup activity lifted combined trading volume before the subsequent slowdown.
The complaint challenges the legality of the companies’ sports event contracts.
The complaint challenges the platforms’ authority to offer their products in South Carolina.
The report quantifies notional trading activity across the platforms as sports events drive demand.
Eventual extends Polymarket’s activities into reporting based on market probabilities.
Minnesota cannot implement its prediction-market ban while the preliminary injunction applies.
The injunction limits immediate enforcement while leaving questions over sports contracts unresolved.
The comments raise concerns about prediction markets in a responsible gambling discussion.
The injunction pauses enforcement of the challenged prediction market prohibition.
The injunction temporarily prevents enforcement of Minnesota’s prediction market prohibition.
The ruling prevents the proposed state restriction from proceeding against prediction-market operators.
The bill would create state oversight while allowing sports event contracts.
The explanation links sponsorship visibility changes to regulatory guidance while retaining the club’s payment.
A broader range of contracts extends the platforms’ trading activity beyond elections.
The intermediary disputes the reported status of the sponsorship following ADM intervention.
The call seeks further enforcement concerning betting promotion in football.
The blocking action restricts Italian access and coincides with the suspension of Polymarket’s Lazio sponsorship.
The bill offers a state regulatory route for prediction-market platforms.
The challenge contests French gambling authority over Polymarket’s event-contract offering.
The proposal would prevent registered exchanges from offering the specified gambling contracts.
Polymarket intends to challenge restrictions on access to its platform in France.
Polymarket plans to contest the French regulator’s access restriction.
Polymarket faces an access restriction in Ireland.
The order restricts access to Polymarket through French internet providers.
The restrictions limit Irish users’ access following the regulator’s warning of court action.
The tournament brought additional users and trading volume to the prediction platforms.
The order restricts access to Polymarket through internet providers.
The order directs French internet providers to restrict access to Polymarket.
Prediction market operators face access blocking in France and court proceedings in Ireland.
The order restricts French access to Polymarket under gambling enforcement rules.
The order restricts French internet access to Polymarket.
The ban requires internet providers to block Polymarket.
Internet providers must block access to Polymarket under the ministry’s order.
The sanction remains in place despite Polymarket’s arguments about its platform and contracts.
The regulator has deferred action while Polymarket responds to the allegations.
The coordinated action concerns access to prediction market platforms.
The penalty follows a warning requiring Polymarket to stop its Dutch activity.
Both companies face disciplinary proceedings over alleged unlicensed gambling activity in Spain.
The two prediction market platforms face a temporary block and regulatory investigation.
The acquisition supports Betr’s planned in-app prediction market access.
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